Can-end drier



Jan. 19, 1926.,

D. L. BYISSET cm END DRIER '7 Sheets-Sheet l Filed July 9, 1924 D. I...BISSET CAN END DRIER Filed July 9, 1924 7 SheetsSheet 2 a 1 EN TOR WK ama; zyim ,4 TTDRNEY Jan 19,1926. 1,570,122 D. L. BISSET CAN END DRIERFiled y 1924 7 Sheets-$heet 5 INVEN TOR 7 Sheets-Sheet 6 F IG- 9- 0o IOE\03 /IIIIIIIIII WiQ D. L. BISSET cm mm DRIER Filed July 9, 1924 Jan. 191926.

FIG-IO- Jan. 19 1926.

D. L. 'BISSET .GAN END DRIER Filed July 9, 1924 7 Sheets-Sheet 7 FIG. IE

7 am G A 5 M m y m ad 3 m G 41 8 8 E ma FIG- H- Patented Jan. 19, 1926.

UNITED STATES PATENT OFFICE.

DAVID LOGAN BI ESSE'I, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR TO A. R.WHIT- TAL CAN COMPANY, LIMITED, OF MONTREAL, QUEBEC, CANADA.

CAN-END DRIER.

Application filed July 9,

To all 1072 am it may concern Be it known that I, DAVID LOGAN BISSET,

a subject of the King of Great Britain, and.

'Driers, of which the following is the specilication.

The invention relates to sanitary can end driers, as described in thepresent specification and illustrated in the accompanying drawings thatform part of the same.

The invention consists essentially of the novel features of constructionpointed out broadly and specifically in the claimed for noveltyfollowing a description containing an explanation in detail of anacceptable form of the invention.

The objects of the. invention are to facilitate the production of cansby drying the gasket solution inside the rim quickly and deliver thesame continuously during the operation; to furnish covers and bottomsfor the cans with the same despatch that the bodies are made; tomaintainthe gaskets in good condition during the process of dryingthereby avoidin any unevenness that might effect the joint; andgenerally to provide efficiency, neatness and reliability in thehermetically sealed joints between the bodies and ends of the cans.

In the drawings, Figure 1 is a plan view of the machine showing one topplate removed and disclosing thereby the can and elevating columns inone section of the machine.

Figure 2 is a vertical sectional view of one section of the machine.

Figure 3 is a rear elevation of the machine showing one cylinderpartially broken away to disclose the can ends as they appear during theoperation and showing the driving mechanism at right angles to the sameas shown in Figure 2.

Figure 4t is a plan view of the driving mechanism. r I

Figure 5 is a perspective detail of the feed mechanism. 2

Figure 6 is an enlarged cross sectional view of one set of columns.

L924. Serial No. 725,027.

Figure 7 is a diagrammatic View of the i 1 showing the dischargemechanism.

Figure 13 is a fragmentary sectional detail of the discharge mechanism.

Like numerals of reference indicate con responding parts in the variousfigures.

Referring to the drawings, the central bearings 10 and 11 are secured tothe base 12, and to either side of these central bearings the bearings13 and bearings 14 are secured, to said base, at a lower level than thebearings 10, and 11.

The supporting frame extends upwardly from the base 12 and is formed ofthe sides 15 and 16 and top 17 the latter having the shaft bearings 18and 19.

The lower shaft bearings 20 and 21 are formed at the ends of the arms 22rigidly secured to the bearings 1i and in these bearings the shafts 23and 2 1 are ournalled, said shaft extending upwardly through thebushings 25 of the bearings 18 and 19 and beingoutwardly flanged at theupper ends 26 over corresponding flanges 27 of said bushings, whichextend beyond the bearing orifices. The shafts 23 and 2a are enlarged attheir upper ends to form the shaft sockets 28.

The countershaft 29 journalled in the bearings 10 and 11 is driven fromthe main shaft 30 through a chain of gears 31 and this countershaft 29is operatively connected by the sprocket and chain drives 32 and 33 tothe shafts 34 and 35 respectively, said shafts 3 1 and 35 beingjournalled in the bearings 13 and 14. respectively.

The shafts 34 and 35 carry the bevel gears 36, coacting with the bevelgears 37 on the shafts 23 and 24 and through this connection the saidshafts 23 and 24 are rotated.

III

The shafts 38 and 39 are inserted in the sockets 28 and are encircled bythe liners 40 in said sockets.

These shafts 38 and 39 extend upwardly through the flanged shaftextension 41 which are inverted and mounted on and secured to theflanges 26 of the shafts 23 and 24, the liners 42 being introducedbetween said shafts 38 and 39 and said shafts 41. The shaft extensions41 are keyed to the spiders 43 and more particularly to the body 44 ofeach spider.

Each spider at the upper end of its body extends outwardly in the legs45 and from the ends of these legs the rods 46 project upwardly to aspider 47 as more particularly explained hereinafter.

The shafts 38 and 39 extend into, through and beyond each spider body 44and are shouldered at 48 inside a body 44 and are keyed just above saidshoulders to the column centers 49, which extend freely into the spiderbodies and project thereabove into the web centers 50 formed at theinner ends of the webs 51 and 52.

The description now for greater clarity will be confined to one sectionof the machine the other being similar in every respect.

The webs 51 and 52 extend from the web centre 50 to the wall of thecolumn 53, this column having a bottom opening 54 and a top opening 55and an external thread 56 and having as a central support the shaft 39,the shaft 38 supporting the other column.

The outer column 57 of each section of the machine is formed with theinternal thread 58 and has the feed opening 60. The outer column 57encircles the inner column 53 and the rods 46 travel around in a centralpath between the two columns and are carried by the spider 43, which inturn is driven by the shaft 24, the latter being connected to the maindrive as explained. The distance between the inner column and outercolumn agrees with the diameter of the can end elevated, as said can endextends therebe-- tween into the threads by means of which it iselevated, of course these can ends travel in piles and a rod 46 engageseach pile, consequently the said can ends simply travel up the spiralsindividually until the discharge opening is reached.

The outer column 57 is mounted on the dished column base 61 and boltedthereto through the flanges 62 and 63 by the bolts 64 and this base 61is supported by the I-bars (35 and 66 on the top 17 of the mainsupporting frame as well as by the flanged extension 67 from the shaftbearings 21, which is also secured to the column base 61 by the bolts68. The bearing 69 is recessed centrally in said column base 61, for thespider body 44.

The outer column 57 is closed at the top by the cover 70, which isformed with the central boss 71 and in which the oil inlet extends andis closed by the nut 73.

The oil tube 72 extends downwardly from the centre 74, of the webs 75and 76 within the column 53 and oil cup 77 the latter tapering at itslower end 7 8 to the outlet 79 into said tube 72. The oil tube 72extends through the interior of the column 53 to the hollow in the shaft38 and from there it reaches the several bearings.

The upper spider 47 is journalled on the web centre 7 3 and is formedwith the clownwardly extending lugs 80, which carry a finger 81, whichin rotation projects the ends on to the discharge chute 82, and as thefinished can end travels it moves over the deflecting guides 83, againsta stop 83 which assists the finger 81, in tipping the ends into thechute.

The shelf 84 extends outwardly from the feed opening 00 and to this thebase 85 of the feed mechanism is secured.

This base 85 is slotted at 86 and S7 corresponding with slots 88 and 89in the shelf 84. The stops 90 and 91 are spaced longitudinally andextend upwardly through the slots 88 and 89 and are offset forwardly at92 and 93 and bevelled on the backs at 94 and 95 respectively. The lugs96 and 97 extend rearwardly from the lower ends and are pivoted in thebase 85 and held to their upper position normally by the springs 98 and99.

The carriage 100 reciprocates over the shelf 84 on the track 101 and atits rear end is formed with the dog 102 springheld by the spring 103 toreturn to its starting point behind the stop 91. The dog 104 ispivotally secured at 105 to the front of the carriagc 100 and extendstherebeyond to the stop 90 in its normal position and in re ciproeationgoes considerably therebeyond to push the can end into the machine. Thecan end passes through the guides 100 and 107 and reaches the deflectingguides 108.

The pivoted arm 109 forming also a guide for the can end is pivotallysecured and the pivot pin 110 extends downwardly having a cam lug 111 atthe lower end in constant contact with a rocker arm 112 pivoted in thebracket 113 and having the connecting rod 114 extending from its lowerend to a clutch lever 115 forming part of a conventional clutchmechanism so that in the event of a jam occurring the arm 109 will beforced back, turning the pin 110 and cam lug 111 thus moving the rockerarm 112 and ultimately throwing out the clutch thereby stopping themachine.

The mechanism just described as referring to one set of columns isduplicated in the other section of the machine and operated from theshaft 21 for while it is desirable to operate this as a compound machinefrom the standpoints of economy and production yet a single machine isquite efiicient. v

In the operation of this machine the carriages of the feed mechanismsare usually driven in their reciprocating movements from accompanyingliner machines, that is to say, the machines that pour the gasketsolution into the can end groove-s, but these carriages may be operatedby cranks or eccentrics connected to the same power, as that drivingthis machine.

The can ends are pushed one by one over the first stop and each onecarried over by the rear carriage dog to the next stop and there takenin hand by the front dog of the carriage and moved in front of one ofthe rods 46 as the lowermost one of the pile carried around in front ofthe rod. The can end is taken between the internal and external threadsand individually lifted with the rise in the threads, of course all theother can ends in the several piles are being similarly treated so thatthere is a continuous discharge of can ends and naturally a continuousfeed. In the event of a damaged end or other reason why it does notenter the threads properly but jams instead, then the guard lever armforming part of the guide is forced back, so that its pivot pin operatesthe rocker arm, which in turn throws off the clutch and stops themachine. The columns in this machine are stationary and the can endstravel, but it would be possible to reverse the operation withreasonably goodresults.

The can ends while travelling through the annular chamber, are subjectto contact with a very dry atmosphere which quickly absorbs all the freemoisture from the gasket solution and to accomplish this the gas burner116 is situated at a convenient place in the passage of air from theblower, and the hot air generated thereby is forced by the blower 117through the pipes 118 to and through the openings 119 in the dish-edbases 61. This air circulates throughout the cylinders and finds egressthrough the top openings 120 and into the pipes 121 connected to theblower 117 the air entering the machine always passing through the zoneheated by the said burner.

The main inlet pipe 121 to the blower 117 has an opening 122 for freshair near its lower end and the blower 117 this opening 122 being closedand opened at will by the valve 123 preferably of the rotary dampertype. There is also an exhaust opening 124 into the branch pipe 125extending from the air pipe 118 between the blower and cylinder opening.

It will be seen that the air from the'blower being heated in passage tothe cylinders, enters at a plurality of places and quietly circulatesthroughout the can ends and passes out with the accumulated moisturefrom the gasket solution to be relieved of its moisture and again sentin a dry state into the cylinders for further absorption of the waterelement of the gum solution forming the gasket in the rims of the canends.

'WVhat I claim is 1. In a can end drier, aninner cylindrical casing andan outer cylindrical casing forming an annular drying chambertherebetween and having external and internal threads respectivelyforming a spiral path through said chamber, a vertical shaft suitablydriven at the lower end, a frame mounted on the upper end of said shaftand driven thereby and formed of upper and lower spiders connected byrods, extending through said chamber at intervals and adapted to engagethe can ends, rigid supports for said outer and said inner casings, andmeans for circulating hot air in forced draft including said annularchamber.

2. In a can end drier, an innner casing and an outer cylindrical casingforming an annular drying chamber therebetween and having external andinternal threads respectively forming a spiral path through saidchamber, a rotary member formed of an upper and lower spider having adownwardly extending hub engaging with a vertical shaft suitably drivenat the lower end, i

and said upper spider having can end slicing disks, rigid supports forsaid outer and said inner casings and means for circulating hot air inforced draft including said an nular chamber.

3. In a can end drier, an inner cylindrical casing and an outercylindrical casing forming an annular drying chamber therebetween andhaving external and internal threads respectively forming a spiral paththrough said chamber, a rotary member formed in a frame having upper andlower spiders connected by rods extending through said chamber atintervals and adapted to engage the can ends, the lower portion of saidframe projecting into a downwardly extending hub and having a bearingextending inwardly from the outer casing and connected to an upperextension of a vertical shaft suitably driven at the lower end, rigidsupports for said outer and said inner casings and means for circulatinghot air in forced draft including said annular chamber.

4;. In a can end drier, an inner cylindrical casing and an outercylindrical casing forming an annular drying chamber therebetween andhaving external and internal threads forming a spiral path through saidchamber, a rotary member having upper and lower spiders connected byrods extending through said chamber at intervals and adapted to engagethe can ends, said lower spider having a hub and a shaft extension keyedto said hub, a vertical shaft having an enlarged end secured to saidextension shaft and forming ill) a socket therefor, said vertical shaftbeing suitably driven at the lower end, rigid supports for said outerand said inner casings, and means for circulating hot air in forceddraft including said annular chamber.

5. in a can end drier, an inner cylindrical casing and an outercylindrical casing forming an annular drying chamber therebetween, andhaving external and internal threads forming a spiral path through saidchamber, a vertical shaft suitably driven at the lower end, a framemounted on the upper end of said shaft and driven thereby and formed ofupper and lower spiders connected by rods extending through said chamberat intervals and adapted to engage the can ends, rigid supports for saidouter and said inner casings, a feed and discharge opening for saiddrying chamber, and a feed ing mechanism base having a shelf secured atsaid feed opening and stops pivoted in said base and extending upwardlythrough said shelf and spring-held to position, reciprocating carriagehaving 'fOlWilItl and rear dogs propelling the can ends and ad vancingthem successively into the machine, and means for circulating hot air inforced draft including said annular chamber.

6. In a can end drier, an inner cylindrical casing and an outercylindrical casing forming an annular drying chamber therebetween andhaving external and internal threads respectively forming a spiral paththrough said chamber, a vertical shaft suitably driven at the lower end,a frame mounted on the upper end of said shaft and driven thereby andformed of upper and lower spiders connected by rods extending throughsaid chamber at intervals and adapted to engage the can ends, rigidsupports for said outer and said inner casings, feed and dischargeopenings for said drying chamber, a feeding mechanism base having a feedshelf with slots at said feed opening, reciprocating carriages havingrear spring-held dOgs advancing the can ends to said shelf and pivotedfront dogs having long shanks and spring-held and adapted to push thecan ends successively and directly in front frame, and means forcirculating hot air in forced draft including said annular chamher.

7. in a can end drier, an inner cylindrical casing and an outercylindrical casing forming an annular drying chamber therebetween andhaving external and internal threads respectively forming a spiral paththrough said chamber, a vertical shaft suitably driven at the lower end,a frame mounted on the upper end of said shaft and driven thereby andformed of upper and lower spiders connected by rods extending throughsaid chamber at intervals and adapted to engage the can ends, rigidsupports for said outer and said inner casings, feed and dischargeopenings for said drying chamber, a discharge receptacle at saiddischarge opening having a deflecting plate for directing'the can endsinto the space made by the rotation of said upper spider and means forcirculating hot air in forced draft including said annular chamber.

8. In a can end drier, an inner cylindrical casing and an outercylindrical casing forming an annular drying chamber therebetween andhaving external and internal threads respectively forming a spiral paththrough said chamber, a vertical shaft suitably driven at the lower end,a frame mounted on the upper end of said shaft and driven thereby andformed of upper and lower spiders connected by rods, extending throughsaid chamber at intervals and adapted to engage the can ends, rigidsupports for said outer and said inner casings, a blower and pipesleading to the bottom end of said annular chamber and pipes leading fromthe top end from and to said blower, a burner situated in the outletpipe from the blower and inlet and exhaust opening in the air passages.

Signed at Montreal, Canada, this 17th day of June 1924.

DAVID LOGAN BISSET.

